<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计算器</title>
    <link rel="stylesheet" href="./计算器.css">
   
</head>

<body>
    <div class="calculator">
        <div class="inp">
            <div class="gradualBox">
                <input type="text" class="output">
            </div>
        </div>

        <div class="number">
            <button class="clear" id="str">AC</button>
            <button id="str">÷</button>
            <button id="str">×</button>
            <button id="str">C</button>
            <button>7</button>
            <button>8</button>
            <button>9</button>
            <button id="str">-</button>
            <button>4</button>
            <button>5</button>
            <button>6</button>
            <button id="str">+</button>
            <button>1</button>
            <button>2</button>
            <button>3</button>
            <button id="str">(</button>
            <button>0</button>
            <button>.</button>
            <button>=</button>
            <button id="str">)</button>
        </div>
    </div>
</body>
<script src="./计算器.js"></script>

</html>